Automated OTN Pipe Configuration via Controller-Based Address Discovery
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Solution Overview
Problem
In existing communications systems using optical transport networks (OTN), the manual static configuration method for establishing OTN pipes between optical line terminals (OLTs) and routers is cumbersome due to the difficulty in initially collecting addresses of OLTs and routers, leading to increased working difficulty and inefficiency.
Innovation Solution
A controller-based method that automatically receives device addresses from border transport devices, generates identifiers for transmission pipes, and creates forwarding tables to establish connections between network domains without manual static configuration, using control plane protocols to facilitate automatic address discovery and pipe establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual static configuration method is used to establish OTN pipes, then transmission pipe establishment can be achieved, but working difficulty increases due to difficulty in initially collecting addresses of OLTs and routers
Solution Approach 1:
The border transport devices automatically send their device addresses to the controller without requiring manual collection. The system performs self-configuration where devices autonomously provide their identification information, eliminating the need for operators to manually gather addresses of OLTs and routers.
Solution Approach 2:
The controller receives device addresses from border transport devices through automatic feedback mechanisms. The system establishes a communication loop where border devices report their addresses to the controller, which then uses this information to automatically generate transmission pipe configurations and provide feedback to the devices.
2Productivity
If manual static configuration method is used, then transmission pipe establishment is possible, but efficiency decreases due to increased working difficulty
Solution Approach 1:
Border transport devices pre-send their device addresses to the controller before transmission pipe establishment is required. This preliminary action of automatic address registration eliminates the time-consuming manual address collection process and enables faster pipe configuration when needed.
Solution Approach 2:
The manual mechanical process of collecting and configuring addresses is replaced with an automated electronic system. The controller electronically receives addresses from border devices and automatically generates pipe configurations, substituting manual operations with automated control plane protocols.
3Ease of operation
If automatic address discovery is implemented, then ease of operation improves, but device complexity increases due to need for control plane protocols
Solution Approach 1:
The control plane protocol functionality is merged into the existing border transport devices and controller infrastructure. Rather than adding separate complex systems, the address discovery and pipe establishment protocols are integrated into the existing device architectures, sharing common components and reducing overall system complexity.
Data Source
AI summary
A transmission pipe configuration method, including receiving a device address of a first network domain, a device address of a second network domain from, generating an identifier of a transmission pipe based on the device address of the first network domain and the device address of the second network domain, where the transmission pipe connects a first border transport device and a second border transport device, and sending to the first border transport device, the identifier of the transmission pipe and the device address that is of the second network domain and that corresponds to the transmission pipe. The identifier of the transmission pipe and the device address are used to generate a forwarding table of the first border transport device, the forwarding table indicating a forwarding relationship where service data is forwarded from the first network domain to the second network domain using the transmission pipe.